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EnglandBiologyQuick questions
Module 4: Biodiversity, evolution and disease
Quick questions on Evolution by natural selection: variation, selection types and the evidence - OCR A-Level Biology A
4short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is natural selection?Show answer
Natural selection follows a clear logic:
What is q1?Show answer
State the ultimate source of new variation in a population. [1 mark]
What is q2?Show answer
Explain why only heritable variation contributes to evolution by natural selection. [2 marks]
What is q3?Show answer
Name the type of selection that favours the intermediate phenotype. [1 mark]
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